package unit;

import java.util.regex.Matcher;

import java.util.regex.Pattern;

public class Util {

    // 获取url路径的正则

    private static final String URL_REG = "<a .* href=.*[^.exe.*]</a>";

    /**

     * 正则表达式获取链接

     * @return

     */

    public String getHref(String str) {

        Pattern pattern = Pattern.compile(URL_REG);

        Matcher matcher = pattern.matcher(str);

        if (matcher.find())

            return matcher.group(0);

        return null;

    }

}